Case Study: GRP Lining Refurbishment of a Fire Sprinkler Tank

Lining Refurbishment

Having been called in to refurbish an industrial fire sprinkler tank suffering from corrosion, Sui Generis applied a corrosion and leak resistant GRP (fibreglass) lining, extending the life of the tank by at least an extra 20 years.

Corrosion

The client, producers of fine alcohol and distillers of spirits, took advantage of the free site survey offered by Sui Generis to assess an old 6m high x 11.6m diameter cylindrical sprinkler tank that was leaking and showing a significant degree of corrosion.

Tank within a tank

Sui Generis recommended a GRP lining system that effectively creates a new tank within the existing structure, as well as strengthening any weaknesses caused by the corrosion.

The tank also needed a low level manway hatch to be fitted, to reduce the risks from within the confined space. It made access much more manageable, providing easier entry for an access tower rather than lowering it through the roof top hatch.

Stable structure

Work started with pumping the residual water out from the tank, followed by grit blasting to all internal walls and floor surfaces to prepare the surfaces for the GRP lining.

After fitting the manway hatch and removing the debris, the Sui Generis team applied the GRP lining to the whole of the interior.

A coat of polyester resin was applied, with internal GRP roof purlins installed followed by a final top coat.

When cured, the GRP forms a stable structure with a high strength-to-weight ratio and good impact resistance.

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Industrial Tank Lining Service

 

Sui Generis applied a corrosion and leak resistant GRP lining, extending the life of the tank by at least an extra 20 years.

1. Sui Generis applied a corrosion and leak resistant GRP lining, extending the life of the tank by at least an extra 20 years.

Internal tank showing rust and damage.

2. Internal tank showing rust and damage.

Sprinkler tank roof top corrosion.

3. Roof top corrosion.

The new low level manway hatch.

4. The new low level manway hatch.

GRP matting is applied to all walls and joints, then impregnated with polyester resin.

5. GRP matting is applied to all wall joints, then impregnated with polyester resin.

Tank lining resin primer wash encapsulation.

6. Resin primer wash encapsulation.

The health and safety training given to Sui Generis staff ensures they achieve the highest standards of workmanship on site in a safe and professional manner. This includes working at height and in confined spaces.

7. The health and safety training given to Sui Generis staff ensures they achieve the highest standards of workmanship on site in a safe and professional manner. This includes working at height and in confined spaces.

Completed GRP lining, including an polyester resin coat with internal GRP roof purlins installed.

8. Completed GRP lining, including an polyester resin coat with internal GRP roof purlins installed.

Completed tank lining with a final top coat.

9. Completed tank lining with a final top coat.

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